IBM 2104 Model DU3 - Manual (Page 22)

4. Refer to Figure 2.
5. For each support rail:
a. Attach nut clips 2 at the selected holes in the front of the rack. These nut
clips must align with the upper and lower holes in the support rail.
b. Count two holes upward from the upper nut clip, and attach a nut clip 1 .
c. At the back of the rack, install two nut clips 3 at the selected holes.
d. Loosen the four adjustment screws 4 so that you can adjust the length of
the support rail.
e. At the front of the rack, locate the support rail so that its mounting lug is
outside the nut clips 2 .
f. Insert the rail screws 5 through the holes in the lug and into the nut clips.
g. Partially tighten the screws.
h. At the back of the rack, locate the support rail so that its mounting lug is
outside the nut clips 3 .
i. Insert the rail screws 6 through the holes in the lug and into the nut clips.
j. Partially tighten the screws.
k. Check whether the support rail is horizontal (a spirit level might be useful
here). If the rail is not horizontal, relocate it as necessary.
l. Fully tighten the front and back rail screws.
m. Fully tighten the four adjustment screws 4 .
6. Go to “Removing the Disk Drive Modules and Dummy Disk Drive Modules” on
page 7.
4
4
2
1
6
5
3
Figure 2. Installing the Support Rails
6 2104 Model DU3 Installation Guide